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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for March 26, 2014
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Open Help Requests for All Makes and Models
Help Request Answers
2005 Audi A4 3.0L Cam Timing VIN: WAULT68EX5
Vehicle came in for noise. Water pump bearing failed. R&R timing belt. This motor has 4 cam phasers not the 2 valve timers. I did use the cam lock/holding tool but did not loosen the cam phasers for adjustment. This was my first time doing a timing belt on thi...
2007 Audi A6 Quattro 3.2L Tire Pressure VIN: WAUDH74F57
I have not been able to reset Tire Pressure System. I can clear it but comes back next day. The only code I get is 01521 Sensor for tire pressure: lower limit exceeded. I have replaced all the sensors and control unit. I have checked the coding for correct set...
2010 Audi A4 Quattro 2.0L No Start, Cuts out VIN: WAUBFAFLXA
Vehicle came into shop no start condition. Engine sounded like it had low compression. Perform compression test found all cylinders low compression. 20 psi. Checked timing found vehicle out of time on intake side 3 teeth. Performed leak down test. No problems ... Trouble codes: P050B, P053F, P0101 (Mass or Volume Air Flow Circuit Range Performance)
2001 BMW 325i 2.5L Poor Idle Quality, Hesitation VIN: WBAAN37421
Has strong vac leak with oil fill cap off. Going through oil. Can see crank case vent valve wet, have ordered new one. Is it better to pull intake to replace this? Just looked at number 6 plug, looks ok. Is the aftermarket ok or do I need the oem style? Trouble codes: 227 (O2 bank 1 control deviation), 228 (O2 bank 2 control deviation), 243 (misfire cyl 6), 21 (vanos inlet)
2003 BMW 325i 2.5L Hesitation, Cuts out, Misfire VIN: WBAET37483
Hello all EURO techs.I have this BMW with a very noticeable misfire/hesitation under load and will eventually throw oxygen sensor codes. Short fuel trim runs 3+/3-% long term stays at 12%+ I replaced the PCV hoping to get the long term trims down when it did n... Trouble codes: 2974 (O2 upstream interuption), 2973 (O2 upstream interuption)
2008 BMW 335i 3.0L Unknown VIN: WBAVB735X8
Hello folks, we have this 2008 BMW 335I with 59,700 miles. Car came in with service engine soon light on, checked DTC (4F53 Fault in disengagement of converter lockup clutch). Checked for transmission fluid leaks, removed mechatronic electrical connector and c...
2008 Buick Enclave CXL 3.6L Battery VIN: 5GAER23738
Original battery replaced 1/2013, replaced battery (warranty) again 2/2014. Now vehicle has a short to ground in the electrical system. Battery shows about 5 volts disconnected, 0 volts connected. disconnected battery & hooked jump box just to cables (to see i...
1972 Chevrolet C10 Pickup 5.7L Cuts out, Misfire
Howdy this is my first request for help. Customer brings a 1972 c10 with a 1996 5.7 vortex and t350 trans. motor has a Holley 4 bbl carb. and a hei dist. with vacuum and mechanical advance, in with a list of work needed. problem is on acceleration under load o...
2000 Dodge Neon ES 2.0L Hesitation, Rpm VIN: 1B3ES46C6Y
Hi guy's.. I need help with my own car.. appreciate all replies to my problem and questions.. my neon shakes bad with air on or just in gear & stopped.. I noticed the idle is 675 at idle, in park, air off, no shake at all, been like this ever since I owned the...
2004 Dodge Neon SRT-4 2.4L MIL Lamp on VIN: 1B3ES66S04
thanks for the help in advance this car is killing me .came in with mil onand a code p0171.looked at data and found ltft at 23-28 at idle only once off idle all numbers llok great.assumed a vacuum leak tried smoking brake cleen propane to no avail.can not see ... Trouble codes: P0171
2004 Dodge Stratus R/T 3.0L MIL Lamp on VIN: 4B3AG52H14
car came in for state inspection fail for mil light po300 random misfire replace cap rotor wires and plugs reset computer car had original parts started car ran for a second timing belt was making noise and light came back on I want put timing belt on but want... Trouble codes: P0300
2005 Dodge Grand Caravan SXT 3.8L refueling VIN: 2D4GP44L45
We have a fleet of six handicap converted vans that we service. This van is new to the fleet and has a unique problem none of the others have had. The fuel tank is not stock and is relocated. The conversion company removes the control valve and rollover valve ...
2005 Dodge Ram 3500 SLT 5.9L 1-2 shift VIN: 3D7MS48C15
Greetings ladies and gentlemen: Customer's concern is that there is a large delay shifting from first to second; was afraid to drive on freeway. States that when cold it doesn't shift at all (1-2) until it warms up a bit. Drove customer home and verified del...
2008 Dodge Ram 1500 ST 4.7L oil pressure VIN: 1D7HU18N28
I'm still gettimg low oil pressure at idle and a tapping noise like it is getting no oil,I need my fellow techs to help me in this problem.
1994 Ford Ranger STX 2.3L dropping spark VIN: 1FTCR14A3R
Ok, have your typical Ford nightmare. Fresh timing belt was done as we discovered the old belt cracking while attempting to figure this main problem out. This thing will run perfectly fine, very well in fact, but after anywhere from 2-10min it will loose/cut s... Trouble codes: 224
2000 Ford Mustang GT 4.6L Clutch VIN: 1FAFP42X6Y
Hello Pro's, We are having a problem with the clutch pedal feel and engagement of this clutch. The vehicle was brought in because the customer was unable to get the transmission into first gear or reverse at times. Upon inspection we found the clutch cable...
2004 Ford F-150 STX 4.6L Module VIN: 1FTRX12W14
Thanks in advance, The ABS module and connector are corroded and melted. The dealer said they don't have a connector. Has anyone seen and dealt with this problem?
2005 Ford F-150 FX4 5.4L No Start VIN: 1FTPX04585
after initial procedures to determine cause, we remove front engine cover and valve covers, found as suspected LH chain tensioner and guide BROKEN in little pieces...removed rest of timing chain components, replaced all 4 guides, tensioners, vct gears, solenio...
2007 Ford F-550 Super Duty XLT 6.0L Stall VIN: 1F6EB71657
hello everyone I have what seems to be a problem child 2006 f550 6.0L customer states truck will not run checked and confirmed a crank no start with only 55psi icp pressure while cranking found leaking stc fitting, replaced fitting and a recommended ipr truck ...
2009 Ford Fusion SE 2.3L Surge, Stall VIN: 3FAHP07Z19
Vehicle will intermittently stall on accel from a stop warm w/ defrost or a/c on. When come to a stop the idle may increase to 1,000 then drop to 500 rpm intermittently & in a surging fashion, & if attempt to accel from a stop while idle is at 500 the engine m...
2010 Ford Escape XLS 2.5L Pto VIN: 1FMCU9C72A
Customer complains that noise while driving. Verified with a road test with the customer. Even at parking lot speeds you get a bearing, growling noise which sounds like it is coming from the center front of vehicle. Ran the car on lift and it was loudest aroun...
2010 Ford E-450 Super Duty 6.8L 2-3 & 3-4 shift VIN: 1FDFE4FS2A
Transmission on the 2-3 shift will hang until 3500 rpm, engine will start to ping. Sometimes it will go ahead a make its up shift on its own, other times if you let off the gas pedal for it to up shift. Does the same thing on 3-4 shift, but according to ford s...
1997 GMC C2500 Sierra SL 5.7L MIL Lamp on VIN: 1GTGC24R9V
Hello. This Vehicle has a GM Alternative Fuel system on it (not currently in use, also never going to be used again as the tank(s) have been deleted). The concern is I have no wiring diagrams for this system... The CES light is on with no codes in the "Gas" co...
2004 GMC Sierra 1500 Denali 6.0L Rear wheel steering VIN: 2GTFK69UX4
I have a gmc with a quadra steering issue. The rear wheels are turned to the right and wont me. This is the first Quadra steer i have worked on. Starting off I had no communication with the rear wheel steering module. After checking powers and grounds to the m...
2009 Honda Accord LX-S 2.4L Tpms VIN: 1HGCP26349
I am able to read each sensor and verify they are working, but I can not communicate through the OBD port to retrieve codes and see why the sensors are not communicating to the module. I am able to read all other data through the ODB2, just not tpms. I checked...
2000 Infiniti G20 2.0L Poor Idle Quality, unstable off idle VIN: JNKCP11A3Y
Engine runs okay until engine gets warm and engine does not idle rough but engine will almost stall out at times while idling and engine RPM will go up and down just off of idle but will be smooth when throttle is opened up a little more. Exhaust smells rich a... Trouble codes: P0340 (camshaft sensor malfunction)
2002 Jeep Grand Cherokee Limited 4.7L Low Vent Pressure VIN: 1J4GW58N52
So vehicle came in with a complaint of smelling coolant inside the vehicle, low pressure out of heating vents and blowing out floor, vent and defrost at the same time also has a vent code 52 for recet door open too large. Upon inspection of heater box found al...
2004 Jeep Grand Cherokee Laredo 4.0L power windows and lock VIN: 1J4GW48S94
Customer jumped other car with this one, now the passenger side windows are inop. Also, dome lamp would not go out unless turned off at light switch. I tried removing the battery cables and hooking them together, that seems to have fixed the interior lamps fro...
2004 Jeep Wrangler X 4.0L Whistling noise VIN: 1J4FA39S24
So my customer complains of a whistling noise while driving. I drove it, and there's a sharp whistling noise while cruising at part throttle. If you open the throttle too far it goes away. It's worst on deceleration, but if you come to a stop it goes away. The...
2005 Jeep Liberty Sport 2.8L Cooling Systems VIN: 1J4GL485X5
I am having issues with this liberty diesel loosing coolant. There are no signs of it leaking anywhere. Does any one know of head gaskets leaking? or any other thoughts? I did replace the heater core because it was leaking. The heater output on this car has al...
2009 Jeep Patriot Sport 2.4L Temperature VIN: 1J4FF28B09
Vehicle was sold by our dealership and has been back twice. Customer complains that the trans starts to whine and then the heat lamp comes on (engine temp shows normal, he took a picture of the ipc for us) by the time it gets to us the temp light is out, the n...
2001 Mercedes-Benz C240 2.6L instrument cluster VIN: WDBRF61J31
The instrument cluster draws 600 m.a. and wont go to sleep if awakened by the network. If I pull either fuse 42 inside or unplug the cluster and plug it back in it goes to sleep. The center display will shut down but continues to draw current. With the cluster...
2001 Mercedes-Benz E320 3.2L MIL Lamp on, No accleration VIN: WDBJF65J91
Hello Fellow Techs, This vehicle came in with check engine light on & BAS/ESP light on. Found the following codes of P0120 - Throttle actuator and C1041 - No communication to acceleration sensor. Engine idles @ 1,100 rpm. Tried a good used actuator, no help. A... Trouble codes: P0120 (Throttle actuator), C1041 (No communication to accleration sensor)
2002 Mercedes-Benz CL500 5.0L Suspension VIN: WDBPJ75J12
Suspension was slammed down. Found tandem pump leaking. Replaced pump assembly attempted to do rodeo test but could not do with Autologic. Performed the rodeo test with Programa software. Car feels o.k. but ABC light comes on. There are 3 fault codes that won'...
2005 Mercedes-Benz E55 AMG 5.5L Cuts out VIN: WDBUH76J35
This car is really getting under my skin. We have a 2005 Mercedes E55 AMG wagon that holds back (lean misfire) on acceleration starting at about 1800 rpm. Now, before you guys start telling me to replace the Air Mass Sensor, it is an AMG and it doesn't have on... Trouble codes: P0432 (Insufficient left catalytic converter), P0422 (Insufficient rightcatalytic converter), P0300 (Multiple misfire at all cylinders)
1995 Mitsubishi 3000GT SL 3.0L ecm VIN: JA3AM54J1S
I have no communication with scanner. I have tried to find a diagram of the ecm pins with no luck can any one help me? I have tested the fuses and found nothing.
2008 Other European Crafter 2.5L Diesel particulate filter VIN: WV1ZZZ2EZ8
Hello. My first helprequest. We have a 2,5 TDI VW Crafter with a Disel particulate filter(DPF) installed. The car was first brought in with the DPF light and the engine light on. Fault code on the DPF-filter malfunction (P2002) I tried to regenerate the filter...
2006 Pontiac Pursuit GT 2.4L TCM Communication VIN: 1G2AN15B16
Hello to all. For some reason my Shopkey database isn't very helpful this time around. Intermittently the Speedometer drops to zero and the trans shifts erratically. I have noticed "Loss of communication with TCM" code in the Engine computer U0101. So here I a...
2007 Scion tC 2.4L engine noise VIN: JTKDE167X7
Engine noise under light load and not at idle will go away with heavy load. The noise is loudest under the balancer on the timing cover, in the oil pump chain area. Removed the cover and replaced t-chain components. Oil pump sprocket's key way is larger than t...
2010 Subaru Forester X 2.5L No Start VIN: JF2SH6AC8A
Car was towed in 2 weeks ago, complaint of no start. Just when we started testing, gave it one more try, started and ran normal. Gave it back to the customer, there were no codes at that time. Came back yesterday on the hook again, this time she said it starte... Trouble codes: P0102, P0113
2005 Toyota Tacoma 2.7L MIL Lamp on VIN: 5TEUX42N35
I got this from a throw on a part shop. They replaced the air switching valve and the air pressure sensor and still had the P2441. My Snap on Verus will not let me remotely run the air pump. I have checked the air pump with jumper wires and it runs and pumps a... Trouble codes: P2441
2000 Volkswagen Passat GLS 1.8L MIL Lamp on VIN: WVWNA23B7Y
This vehicle check engine light come on for code P1136 system too lean bank 1, smoke tested found evap purge valve check valve leaking so replace it, two other check valves under intake manifold and also replace vacuum hoses wild i was there found brake booste... Trouble codes: P1136 (Bank 1 System too lean)
2002 Volkswagen Jetta GLS 1.8L Hesitation VIN: WVWSE61J92
Got a Jetta with the 1.8L turbo (AWP) that bogs down on accel and throws code p1200. We have tested the diverter valve (on intake boot) GOOD The AMM is GOOD The recirculation valve (n249) is testing GOOD The wastegate actuator valve (n75) is testing GOOD The ... Trouble codes: P1200

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2010 Audi A4 Quattro 2.0L No Start VIN: WAUHFAFL8A
Hi everybody, i like to thank you all for your help, after checking the fuel pressure and ignition system all seem to be good, after checking the engine's compression we found out that it is low, i contacted the customer to inform him that it is an engine prob...
1999 Buick Century Custom 3.1L Starter VIN: 2G4WS52M0X
Thanks for all that replied. I am sorry for the lack of info on this but it came to me before I had a conference planned to go to at the end of last the week. I repaired all the wires in the harness by the battery that had gone to the ecm. I talked to the cust...
2004 Cadillac SRX 3.6L Poor Idle Quality, won't rev VIN: 1GYDE63744
I had alittle time went by to help my friend with Cadillac it was a wiring problem.seem that the wiring on the replacement connector isn't like most connectors instead of the 456-123 numbering of the pins 246 135 is the way GM choose to number the -new connect... Trouble codes: P2176 (Min. idle not learned), P0122 (Throttle Position TP Sensor 1 Circuit Low Voltage), P0222 (Throttle Position TP Sensor 2 Circuit Low Voltage).
2002 Chevrolet Silverado 3500 LS 6.6L Fuel gauge VIN: 1GBJC34142
Fuel gauge reading problem is fixed. Thanks to Seth and Matthew and everybody for there help. I make the problem myself by not checking out the dual fuel tank system. When a poster said rear tank may be empty. I looked at rear tank and saw it also had a fue...
2007 Chevrolet Tahoe LTZ 5.3L driver's airbag VIN: 1GNFK13077
First thanks to all responses. Great suggestion on inserting 2 ohm resistors. This now gave same codes 0012 and 0013 but instead of saying "open circuit" now says "below threshold" or low resistance". Installed an airbag from a 05 Yukon (connectors identica...
2008 Chevrolet Express 2500 4.8L No Start VIN: 1GCGG25C48
i pulled the fuse box appart only to find nothing wrong. I put everything back together, snaked wires out from above tank and plugged them in to old pump. I then put power to pump via the fuel pump fuse. i started wiggling wire harnesses near tank and the pump...
2003 Chrysler Town & Country EL 3.3L MIL Lamp on VIN: 2C4GP24R13
michael from new mexico you are the man! it was indeed the front control module. after chasing wires and unplugging modules and hooking up 3 scanners with no luck, i installed a front control module from a working van. everything started working and i got my c... Trouble codes: P1684 (lost power to tcm).
2005 Chrysler Pacifica Touring 3.5L Transmission VIN: 2C8GF68445
Thanks for all the help. I'm not going to fix this one. I needed to be sure that I wasn't the cause of their problem. It was unanimous that PCM replacement could not cause transmission to slip. I did do CVI test and it passed that but it failed the clutch test...
1997 Dodge Ram 3500 5.9L Hard Start VIN: 1B6MF36D1V
Got this one fixed and out the door. A lot of good information to work with. Found out that these don't have glow plugs rather have a grid that heats the air as it comes into the throttle body. After checking the current draw on that and making sure it was wor...
2003 Dodge Neon SXT 2.0L exhaust glows red VIN: 1B3ES56C93
iAtn is the BEST!! This vehicle is fixed!, Apparently machine shop switched reluctor rings when they install camshaft. I installed new ring and P0344 is gone and check engine light is off. ] What I learned: Make sure cam pulley is oriented correctly for the... Trouble codes: P0344 (Cam sensor signal intermit.).
1978 Ford F800 3116CC Booster
Tried about everything we can think of.Have sent booster back to the rebuilder to see what they can do.We have had to dead line this truck in fear of what could happen.So far costumer is ok but he needs the truck.When I get the booster back I will update the p...
1995 Ford Ranger Splash 3.0L Catalytic Converter VIN: 1FTCR10U5S
Seveal folks mentioned that both IAT and CTS are critical if these monitors are to run. To be honest I don't recall seeing the CTS being too cold, I never even looked at IAT.Some folks said that that the PCM could be "stuck on stupid" and may never run the mon...
1999 Ford F-150 4.2L Poor Idle Quality, Hesitation, Poor Fuel Economy, MIL Lamp on
Joe nailed it. Self test commanded the imrc. Closer inspection confirmed both lever bushings damaged/missing. Replaced the bushing & all is good. Trouble codes: P1538 (Imcr stuck open).
2000 Ford Focus SE 2.0L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Misfire VIN: 1FAFP34P9Y
ok guys first off thank you to all who responded! all ideas were helpful in many respects but on line diag can be tricky without the vehicle in front of you. on second run thru all the systems suggested I touched the coil bracket with the engine running and re...
2005 Ford Freestyle SEL 3.0L Power Windows, Radio, Delayed Accessory Relay VIN: 1FMDK05125
Thank you for your patience with me on this one. We finally got the vehicle back for a few days. I found the problem strictly by process of elimination. I tested all fuses on the vehicle and all of them tested good. I then tested circuits for the power windows...
2007 Ford F-550 Super Duty Lariat 6.0L Excessive Emissions VIN: 1FDAF57P77
Well... this one is fixed ! Came in with a miss,got rid of the miss but got heavy smoke and rapidly progressed to locked engine (hydro). Eight responses in 3 days, Thanks Gentlemen. Dale,Aaron,Alex,Joseph,Dan,Nigel,Allen and Michael all said injector troubles....
2011 Ford Taurus Limited 3.5L remot start VIN: 1FAHP2JW8B
Suspected we had a problem with the remote start module. Customer decided it was not worth it to pursue. Thanks for the help. Michael
2006 GMC Sierra 2500 HD SLT 6.0L fuel gauge VIN: 1GTHK23U76
code did not return, had it fixed, was just low enough on gas to read empty. added 5 gal. now at 1/4 tank.
1998 Honda Passport EX 3.2L rack VIN: 4S6CK58W4W
I agree with all of you about these great suggestions, unfortunately I have tried them all and exhausted all options. I fixed this problem by disassembling the rack, pulling the pinion out of the rack and reclocking it back in. I now have my alignment done and...
2000 Jeep Cherokee Sport 4.0L No Start, Poor Idle Quality, Cuts out, Stall VIN: 1J4FF48SXY
The customer decided to just hold off on any further work. He is going to let it sit for now. I was not able to get anywhere with the problem before he pulled the plug. Thank you for all of the helpful input. Trouble codes: P0300, P0306.
2000 Jeep Grand Cherokee Limited 4.7L No Start VIN: 1J4GW58N5Y
Alright this took some time but finally got back on this one. After tearing this Jeep apart tracing all wiring and checking all sensors again; I put a reman ECM in this and no more stalling issues to date. Thanks for all help received.
2006 Kia Sorento EX 3.5L Leak VIN: KNDJC73366
Both replies made assumption this differential was in a FWD transaxle. No other replies. I am replacing the carrier because I cannot see any other way out. I am going to assume the carrier is also the axle stub shaft support.
2003 Lincoln Navigator 5.4L trac light is on VIN: 5LMFU28R73
Thanks for your replies. I found several shorted wire in the drivers side door sill under trim. Not a great design there is alot of evidence of water intrusion and I think someone else was trying to fix this concern due to missing air susp mod and certain cut ...
1976 Mercedes-Benz 280S 2.8L No Start, no spark
OK, I still need help with this car but unable to post any info so must close it. My email is [...] I got a new switchgear, hooked it up but still have the same results in that when graphing voltage at the coil I have battery voltage KOEO and ...
2003 Nissan Altima SE 3.5L No Heat At Idle VIN: 1N4BL11E83
2007 Nissan Frontier XE 2.5L No Start VIN: 1N6BD06T57
I have no explanation as to why but the ECM was faulty. It seemed to work fine with the exception of no injector pulse. Thanks for everyone's replies.
1994 Toyota Supra Twin Turbo 3.0L No Start, No Comm W ECU VIN: JT2JA82J0R
Was told to check things already checked by responses, found power and ground signals all where they are supposed to be at ECM,ECM is dead and no longer available from dealer, sent car to dealer at clients request. Found out later stereo had been installed and...
1999 Volkswagen Passat GLS 1.8L Door locks VIN: WVWNA63B9X
Sadly, after 6 hours we had to put this thing back together because the customer didn't want to go any further. All the replies led to checking the comfort module and wiring harness in that area for water intrusion. I unwrapped the entire harness up to the A p...
2002 Volkswagen Jetta GLS 2.0L Ignition VIN: 3VWSB69M82
Thanks so much for the quick replies and a special thanks to Roman from Singapore for the wiring diagrams .Sorry for the delay Guys had to get away from this one for a couple of days . Good news is it is fixed ..after talking to several of the family members w...
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